* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
li {
  list-style: none;
  margin-left: 25px;
}

.bear {
  position: absolute;
  top: 500px;
  left: 0;
  width: 200px;
  height: 100px;
  background: url(../img/bear.png) no-repeat;
  animation: bear-move 1.5s steps(8) infinite, move 8s forwards;
  z-index: 2;
}

.mound1 {
  position: absolute;
  left: 0;
  top: 300px;
  width: 100%;
  height: 330px;
  background: url(../img/bg1.png) no-repeat;
  animation: bear-move 9s linear infinite;
  z-index: 1;
}

.mound2 {
  position: absolute;
  left: 0;
  top: 80px;
  width: 100%;
  height: 569px;
  background: url(../img/bg2.png) no-repeat;
  animation: bear-move 7s linear infinite;
}

@keyframes move {
  0% {
    left: 0;
  }

  100% {
    left: 50%;
    transform: translate(-50%);
  }
}

@keyframes bear-move {
  0% {
    background-position: 0;
  }

  100% {
    background-position: -1600px;
  }
}

.w {
  margin: 50px auto;
}

.login-main {
  position: absolute;
  left: 50%;
  top: 30px;
  transform: translateX(-50%);
  width: 380px;
  height: 300px;
  /* background-color: pink; */
  border: 1px solid rgb(130, 165, 230);
  border-radius: 30px;
  z-index: 3;
}

.login-main .login_title {
  margin-top: 10px;
  font-size: 24px;
  text-align: center;
  background: #ff1e56;
  background: -webkit-linear-gradient(to right, #364ed3, #e6643c, #27a3dd);
  background: linear-gradient(to right, #1e90ff, #f9c942, #ff1e56);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

.login-main input {
  width: 270px;
  height: 36px;
  font-size: 14px;
  color: #000;
  outline: none;
  border: 1px solid rgb(178, 178, 178);
  box-sizing: content-box;
  padding-left: 8px;
  margin-left: 3px;
  margin-top: 6px;
  border-radius: 3px;
  box-shadow: 0px 0px 9px -2px rgb(160, 185, 224) inset;
}

.login-main input::placeholder {
  color: #ccc;
  font-size: 14px;
}

.login-main .username {
  margin: 10px 0 0 0;
  /* color: #666; */
  text-align: center;
}

.login-main .password {
  margin: 16px 0 0 0;
  text-align: center;
}

.login_btn {
  margin: 26px 0 0 43px;
}

.login_btn .login_faster {
  float: left;
}

.login_btn .reset {
  float: right;
  margin-right: 40px;
}
